Since such a large proportion of their fat stores is exhausted despite feeding, mother seals clearly cannot support all of lactation using only energy stored before giving birth.
由于如此大比例的脂肪储备在喂养过程中会消耗殆尽，海豹母亲显然不能仅靠生育前储存的能量来维持整个哺乳过程。
The maternal strategy evolved by harbor seals may have to do with their small size and the large proportion of their fat stores depleted in lactation.
麻斑海豹进化出的母性策略可能与它们的小体型和哺乳时消耗掉的大部分脂肪有关。
Whales, seals and penguins cope with the consequent danger of freezing up by burning vast amounts of food to keep their bodies warm and by insulating themselves with thick layers of fat.
鲸鱼，海豹和企鹅要应付随之而来的冻僵危险，可通过消耗大量的食物保持体温及自身一层厚厚的脂肪保暖。
The seals provide much of the fat the bears need for warmth.
海豹为北极熊提供了保暖所需的大部分脂肪。
In the summer it is harder to catch seals, so before summer arrives, the bears eat as much as they can to fatten up, then live off the fat in their bodies.
在夏季，它是很难捕捉海豹，所以夏季到来之前，熊大量吃因为它们可以用来催肥了，然后吃了他们的身体脂肪。
Amy: Once a year. It's a deal I made with my mother in exchange for her silence on the matter, as well as the occasional use of her George Foreman Grill that seals in the flavor without the fat.
艾米：一年一次，我和我妈说好了，这样她就不唠叨这事，还可以偶尔用她的乔治·富曼烤架，锁住美味，没有脂肪。
Amy: Once a year. It's a deal I made with my mother in exchange for her silence on the matter, as well as the occasional use of her George Foreman Grill that seals in the flavor without the fat.
艾米：一年一次，我和我妈说好了，这样她就不唠叨这事，还可以偶尔用她的乔治·富曼烤架，锁住美味，没有脂肪。
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